On the 48 V to 2 V, 100 A converter, the author reopened the native EasyEDA board (77 components, 299 pads, 98 tracks) instead of writing another conceptual report. Four 1.0 mm VOUT feeder branches and eight 1.0 mm PGND feeders alone come to 3,766 µΩ at 35 µm copper, about 37.7 W at 100 A, and even 210 µm copper leaves the necks at 628 µΩ, more than 4x the 150 µΩ budget for the whole VOUT plus PGND path. The board stays NOT_FOR_FAB.
Recurring agent failure issue in CZY (czy0126)
What engineers report
A recurring agent failure problem in CZY (czy0126) that mostly hits the electrical engineer.
Failure pattern: agent / failure
Analyst note
From the Grok pain-radar digests, Nov 9-10 2026 (Nov 9 7:41 AM ET through Nov 10 7:41 AM ET digests plus the Haitch editions). Verified live 2026-11-10: issue/PR read; title and state confirmed.
What it costs a team
Modeled annual cost
$30,000
For a team of 5
Prototype delay
3 days
Modeled schedule slip per occurrence
Time lost
240 min
Per engineer per month, about 1 incidents
How the cost is modeled
240 min/month × 5 engineers × 12 months = 240 hours × $125/hour = $30,000
A modeled estimate with medium confidence. Swap in your own team size and loaded rate to size it for your team.
Engineering tools that address it
No engineering tool profile lists this error yet. Browse tools that connect to CZY (czy0126).
Evidence
More recurring errors in CZY (czy0126)
- A pre-fab review of a 48V to 2V/100A converter: in the SPICE deck the two secondary half-windings meet at the center tap with opposite dot polarity, while the winding process card says the dotted ends join at the center tap, so if the winder follows the card the secondary gets built reversed. The author also notes tools/board_netlist.py only checks matching net names, so it cannot catch this, and asks for one dotted wiring drawing shared by sim, board netlist and card, plus a first-article polarity measurement.ECAD · impact 82
- A 100 A power board netlist check returned a misleading ok=True. It now says readiness PARTIAL_PASS and manufacturing_ready false, and refuses to close the gate on a new magnetics refdes whose physical pins and dot are not verified. The same PR fixes an output-path loss calc that treated the worst local 1.188 mOhm branch as the whole 100 A path, giving 13.33 W instead of about 1.35 to 2.8 W across four 25 A groups. About 39 MPNs/values are still missing.ECAD · impact 74
- A 48 V to 2 V, 100 A converter first article has three documents with three answers: the capacitor selection table picks 15 x 470 uF (7.05 mF) while the V3 simulation deck uses 4 mF, the deck has Lr at 0.92 uH against a 1.0 uH design target, and simulated Vout is 1.8867 V against a 2 V plus or minus 2 percent spec. The board is still marked NOT_FOR_FAB.ECAD · impact 74
- A homemade BOM gate raised an error whenever an operator swapped an erroneous OEM part, so the real EasyEDA GUI repair process cannot be reflected in an auditable report at all. It also kept counting R8 as a wrong purchase after it was set to DNP.ECAD · impact 74
- Building a native EasyEDA Pro schematic for a 61-part power board from a golden netlist, the golden netlist names a FET's pins G/S/D, but the real SON/TDSON packages have 8 to 9 pads. A schematic that wires the S pin leaves pads 1 and 2 floating and still exports a netlist that matches the golden one, so the defect only appears in copper. The authors pulled pin-to-pad maps from a measured pin dump of the real devices and wrote a pad-level diff, plus a test that breaks a correct export eight ways so the ok: True is not self-certifying. Issue #9 says plainly that a PDF or screenshot cannot stand in for the CAD file.ECAD · impact 74
- EasyEDA BOM values matched the schematic while the native manufacturer codes pointed at different parts, with 39 native MPN vs design-target conflicts across 51 targets and 37 cases marked ALREADY_CONFORMS by a text-only ECO; companion PR #62 adds the release check.ECAD · impact 74
Sourced from public community reports. Costs and delays are modeled estimates, not measurements. Know a better source or a fix? Tell us at hello@productflo.io.